import java.util.Map;
import java.util.TreeMap;
import java.util.TreeSet;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 98152
 * Date: 2024-07-22
 * Time: 18:07
 */
public class Test {
    public static void main(String[] args) {
        /*BinarySearchTree bst = new BinarySearchTree();
        bst.insert(10);
        bst.insert(5);
        bst.insert(15);
        bst.insert(3);
        bst.insert(9);
        bst.insert(18);*/
        TreeSet<String> treeSet = new TreeSet<>();
        TreeMap<String, Integer> treeMap = new TreeMap<>();
        treeMap.put("hello", 2);
        treeMap.put("world", 3);
        Integer val = treeMap.get("hello");
        System.out.println(val);
    }
}
